Manufacture of imidazoline compounds

Details Manufacture of imidazoline compounds Manufacture of imidazoline compounds

1978-12-20

1980-07-15

Trousof, Natalie

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548347, C07D23314, C07D23316

Patent

active

042129834

ABSTRACT:
The invention provides a process for reducing the diamide content of imidazolines having the formula: ##STR1## wherein R represents an aliphatic group having from at least 4 carbon atoms and R.sub.1 represents an alkyl or alkenyl group having from 1 to 4 carbon atoms.
The mixture of imidazoline and diamide is reacted with a primary or secondary amine which deacylates the diamide to an amido-amine. The product of this deacylation is an imidazoline solution which remains clear even on prolonged storage.
The imidazoline is produced by reaction of an acid RCOOH with a diamine NH.sub.2 (CH.sub.2).sub.2 NHR.sub.1. Preferably this diamine is used as the deacylating agent.

REFERENCES:
patent: 2155877 (1939-04-01), Waldmann
patent: 2215864 (1940-09-01), Waldmann
patent: 2267965 (1941-12-01), Wilson
patent: 2268273 (1941-12-01), Wilkes et al.
patent: 2355837 (1944-08-01), Wilson
patent: 2528378 (1950-10-01), Mannheimer
patent: 2992230 (1961-07-01), Lescisin
patent: 3408361 (1968-10-01), Mannheimer
patent: 3555041 (1971-01-01), Katz

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